Cotter-pin extractor



Das- ,1924; misuse J. 331. WARMNGTQN comma PIN EXTRACTOR Filed may 14.1923 u. G. War/7W,

Patented Dec. 9, 1924.

UN 1 T E JOHN GRA Y HARRINGTON,

COTTER-PIN Appflication filed May 14,

1 '0 all 10 7mm it may concern Be it known that 1, JOHN GRAY VineniNo'roN, a citizen of the United States, residing at Dansville, in thecounty of Livingston and State of New York, have invented certain newand useful Improvements in Cotter-Pin Extractors, of which the followingis a specification.

This invention has reference to cotter pin extractors, and its object isto provide a device by means of which a cotter pin may be grasped insuch manner as to remove it from its seat even though such extraction beforcibly resisted. I

In accordance with the invention, there is provided a pincer-likestructure comprising two arms hinged together intermediately and movableabout such hinged connection in crossed relation, with one armterminating in a broad lip and the other arm bent into substantiallyright angular relation to the lip, so as to approach and recedetherefrom and bear thereagainst, the bent arm arching with relation tothe first arm, so as to approach and recede therefrom, and said archedarm being so related to the first arm that the nose may enter throughthe eye of the cotter pin to traverse the same whereby ample force maybe brought to bear upon the eye end of the cotter pin to extract it fromits seat.

The invention will be best understood from a consideration of thefollowing detail-ed description taken in connection with theaccompanying drawing forming a part of this specification, with theunderstanding that the invention is not confined to any strictconformity with the showing of the drawing, but may be changed andmodified as long as such changes and modifications mark no materialdeparture from the salient features of the invention as expressed in theappended claim.

In the drawing:

Figure 1 is a side view of a cotter pin extractor.

Figure 2 is a plan view thereof.

Referring to the drawing, there is shown an extractor 1, comprising twohandles, 2 and 3, respectively, with the handle 2 con nected with thehandle 3 by means of a pivot pin 4..

The handle 2 terminates in a broad lip 5 oanausvima; :YoaK.

EXTRACTOR.

1923. Serial No. 638,740.

straightened and flattened at the outer end, while the other handle isformed with an arched end 6 of suflicient length to reach to thetermination of the lip 5 and bent thereupon in substantially angularrelation thereto.

In use, the device or tool is opened up, and the arched end 6 whichterminates in an extremity 7, is passed through the eye end of thecotter pin and bears down upon the extremity 5, so that the end 7 isheld against the extremity 5 by the extremity 7. In this manner, whenthe device is in the closed position, the extremity or end 7 passesthrough the eye of the cotter pin and engages against the extension 5,thus holding the cotter pin in position while being manipulated.

The extremity 7 is so related to the extension 5 as to bear thereuponintermediate of its width and extend through the cotter pin to hold thelatter from escape therefrom, while the cotter pin is being manipulatedto bend it into locking relation to said cotter pin so that it cannotesca e after being once bent into such locking relation.

The lip 5 is substantially ovate in plane and is provided with a flatinner surface 5, and a convex outer surface 5". The hook 6 is providedat one side with a flat surface 6 and at its opposite side with a convexsurface 6". The pointed end of the hook is inwardly disposed and isadapted to engage upon the plane surface of a lip at a point between theedges of the smaller end thereof. By reason of such arrangement, thebill end of the hook may be engaged through the eye of the cotter pin,and the ooiwcx outer surface of the lip may rest upon the fulcrum point,(not shown), and the too] may then be effectually used as a lever forwithdraw ing the cotter pin. After the cotter 'pin has been soldered,the tool may be turned over and the other side of the hook may be usedas a fulcrum for prying the pin out of the parts in which it isinserted.

Vhen it is desired to remove the cotter pin, the latter is bent to oneside, and may be moved out of the locking relation to which it is bentin the first manipulation.

Having thus described my invention, what I claim as new, and .desire tosecure by Letters-Patent, is:

A tool for extracting cotter pins comprising handles pivotally connectedtogether, at its opposite side with a convex surface one of the handlesbeing provided at its the pointed end of the hook being inwardly 1Working end with an elongated lip which is disposed and adapted toengage upon the substantially ovate in plan and provided plane surfaceof the lip at a point Within the l with a plane inner surface and aconvex edge of the smaller end thereof.

outer surface, the other handle having at In testimony whereof I affixmy signature. its Working end a substantially arcuate hook provided atone side With a fiat surface and J. GRAY \VARRINGJUN.

